-
公开(公告)号：US4833205A
公开(公告)日：1989-05-23
申请号：US157680
申请日：1988-02-18
CPC分类号： C08J9/0061 , C08C19/14 , C08F8/22 , C08G18/06 , C08G18/69 , C08G85/00 , C08J11/04 , C08J2375/04 , Y02P20/143 , Y02W30/70
摘要： Ground polymeric elastomer or other polymeric plastic, particularly from recovered scrap, is surface modified by treatment with a gaseous mixture containing a minor amount of fluorine and a larger amount of at leasts one reactive gas in an inert gaseous carrier. By the treatment the ground material is made more compatible for admixture with polyfunctional polymer-forming liquids, thereby obtaining novel composites of controlled physical properties. The other reactive gas is preferably oxygen or one of the gases from the group consisting of: chlorine and SO.sub.2 with or without added oxygen.
摘要翻译： 地面聚合弹性体或其他聚合物塑料，特别是回收的废料，通过在惰性气态载体中用含少量氟和至少一种反应性气体的气体混合物处理进行表面改性。 通过处理使研磨材料与多官能聚合物形成液体的混合更加相容，从而获得具有受控物理性质的新型复合材料。 其它反应性气体优选为氧气或来自由具有或不具有添加氧气的氯和SO 2组成的组中的一种气体。
-
2.发明授权Polymeric materials having controlled physical properties and processes for obtaining these 失效具有受控物理性质的聚合材料和获得这些物质的方法
公开(公告)号：US4771110A
公开(公告)日：1988-09-13
申请号：US825839
申请日：1986-02-04
IPC分类号： C08J3/00 , C08C19/14 , C08F8/00 , C08F8/22 , C08G18/06 , C08G18/08 , C08G18/69 , C08G85/00 , C08J3/20 , C08J9/00 , C08J11/04 , C08L7/00 , C08L21/00 , C08L23/00 , C08L67/00 , C08L75/00 , C08L101/00 , C08L75/04
CPC分类号： C08J9/0061 , C08C19/14 , C08F8/22 , C08G18/06 , C08G18/69 , C08G85/00 , C08J11/04 , C08J2375/04 , Y02P20/143 , Y02W30/70
摘要： Ground polymer elastomer or other polymeric plastic, particularly from recovered scrap, is surface modified by treatment with a gaseous mixture containing a minor amount of fluorine and a larger amount of at least one reactive gas in an inert gaseous carrier. By the treatment the ground material is made more compatible for admixture with polyfunctional polymer-forming liquids, thereby obtaining novel composites of controlled physical properties. The other reactive gas is preferably oxygen or one of the gases from the group consisting of: chlorine and SO.sub.2 with or without added oxygen.
摘要翻译： 研磨聚合物弹性体或其他聚合物塑料，特别是回收的废料，通过在惰性气态载体中用含少量氟和更多量的至少一种反应性气体的气态混合物进行处理来进行表面改性。 通过处理使研磨材料与多官能聚合物形成液体的混合更加相容，从而获得具有受控物理性质的新型复合材料。 其它反应性气体优选为氧气或来自由具有或不具有添加氧气的氯和SO 2组成的组中的一种气体。
-
公开(公告)号：US4764405A
公开(公告)日：1988-08-16
申请号：US76457
申请日：1987-07-22
IPC分类号： B05D7/02 , B05D3/04 , B29C49/24 , B29C49/46 , B32B27/08 , B32B27/28 , B32B27/30 , B65D25/14 , C08J7/04 , C08J7/12 , B05D3/00 , B65D23/02
CPC分类号： B05D3/0446 , B29C49/46 , C08J7/047 , C08J7/12 , C08J7/126 , B29C2049/4617 , B29C2049/4623 , B29K2995/0067 , Y10T428/1379 , Y10T428/31507 , Y10T428/3154 , Y10T428/31573 , Y10T428/31797 , Y10T428/31913 , Y10T428/3192
摘要： The present invention is a method for improving the barrier properties of thermoplastic substrates. A surface of the thermoplastic substrate is contacted with a reactive gas stream having an F.sub.2 concentration greater than or equivalent to 0.0001 atm. partial pressure of F.sub.2 per atm. total pressure and sufficient oxygen such that the F.sub.2 /O.sub.2 ratio is less than or equal to about 100, with the remainder being additional reactive and/or non-reactive components. A barrier coating material is applied to the treated surface of the substrate and subsequently undergoes a curing step to form the final product.
-
公开(公告)号：US4659674A
公开(公告)日：1987-04-21
申请号：US536604
申请日：1983-09-28
CPC分类号： G01N33/442 , G01N15/08 , G01N2033/0081
摘要： A method is provided for determining the impermeability of a polymeric article to a fluid by the steps of:(a) allowing a permeant to diffuse through the polymeric article for a preselected period of time,(b) converting permeant, diffusing through the article, to an ion by a chemical reaction and(c) measuring the amount of ion formed quantitatively with an ion-selective electrode.A method is further provided wherein a polymeric article is exposed to a permeant for a fixed period of time; removed from contact with the permeant; exposed to a chemical which will convert permeant, back-diffusing through the polymeric article, to an ion; and quantitatively measuring the amount of thus-formed ion with a ion-specific electrode.
摘要翻译： 提供了一种用于通过以下步骤确定聚合物制品对流体的不渗透性的方法：（a）允许渗透剂通过聚合物制品扩散预选的时间段，（b）转换渗透物，通过制品扩散， 通过化学反应进行离子化，（c）用离子选择性电极测量定量的离子量。 还提供一种方法，其中将聚合物制品暴露于渗透物一段固定的时间; 脱离与渗透物的接触; 暴露于将透过物转化成离子的化学物质，其通过聚合物物质反向扩散; 并用离子特异性电极定量测量如此形成的离子的量。
-
公开(公告)号：US4880675A
公开(公告)日：1989-11-14
申请号：US185715
申请日：1988-04-25
申请人： Rajendra K. Mehta
发明人： Rajendra K. Mehta
CPC分类号： C08J7/126 , B29C49/22 , B29C49/46 , B32B27/32 , B65D1/0215 , B29B2911/14593 , B29C2049/4608 , B29C2049/4617 , B29C2049/4623 , B29K2023/06 , B29K2023/083 , B29K2023/12 , B29K2077/00 , B29K2995/0017 , B29K2995/0067 , B29K2995/0069 , C08J2323/06 , Y10T428/1352 , Y10T428/24967 , Y10T428/3154 , Y10T428/31746 , Y10T428/31913 , Y10T428/3192 , Y10T428/31928
摘要： The present invention is an improved plastic container having both improved thermal resistance and improved aroma and flavor barrier properties. The container comprises a polyethylene inner layer having a thickness in the range of 0.5 to 10.0 mil, and a coextruded polypropylene outer layer having a thickness such that the ratio of polypropylene to polylethylene is at least 2:1, and wherein the surface of the polyethylene layer has been treated with a reactive source of fluorine.
-
-
-
-
搜索结果
5 条记录 (耗时 0.018 秒)
